Apparatus for applying adhesive preparations



Feb. 6, 1934;

R. JQOBRIEN x-:T AL; APPARATUS FOR APPLYING ADHESIVE PREPARATIONS*INVENT FAW/@Na ORS ATTORNEY Patented Feb. 1934 I UNITED STATES.PATEN';` OFFICE APPARATUS FOR APPLYING ADHESIVE PREPARATIONS Raymond J.OBrlen, Rutherford, N. J., and

Eardley Hazell, New York, N. Y., assignors to The Naugatuck ChemicalCompany, Naugatuck, Conn., a corporation ol' Connecticut ApplicationNovember 18, 1930 Serial No. 496,550

12 Claims. (Cl. 154-1) Our present invention relates to textile fabonexes and bends the fibers of the pile of the rios and more particularlyto an improved methrug against the line of travel thereof and also od ofand apparatus for applying adhesive preplaterally of the direction ofsuch travel. arations to pile rugs. As above indicated if the latex ordispersion In the manufacture of rugs, particularly pile composition isthick and pasty it cannot ordi- 55 rugs, it has been found that a moredurable nari1y be used, as when applied with prior Ideproduct isobtained, if the pile fibers are emvices it does not suiiicientlypenetrate the pile. bedded in latex or rubber composition, and va- Ourimproved device makes it possible to use a rious devices have beenproposed for applying pasty preparation lof latex.

such latex or rubber composition to the pile fab- An object of ourinvention, therefore. iS an 60 ric, none of which, however, have beenentirely improved method of applying adhesives to ya successful. It isessential that the adhesive preprug.

arations such as latex be applied in such a man- Another object of ourinvention, therefore, is

ner as to penetrate sufficiently into the rug to an improved adhesiveapplying and Working deprovide a rm bonding of the pile fibers, yet theyvice for pile rugs. v

must not penetrate so far as to show on the In the accompanying drawing,illustrating a top of the iinished pile fabric. preferred embodiment ofour invention;

It is possible to have an adhesive prepara- Fgurel isaseti'onal'sideelevation;

tion such as latex or a composition of rubber Fig. 2 is a plan view ofone end of the device that will require no after working when appliedshown in Fig. 1; 70

to the rug, but such compounds are liable to Fig. 3 is an enlargedsectional elevation of the strike through the elements of the rug and amassaging roll shown in Fig. 1; and

, defective rug is the result. On the other hand, Fig. 4 is a detail ofa pile rug fabric t0 Which adhesive preparations may be made which willan adhesive composition has been applied by the not strike through thebody of the rug, yet which device illustrated. 75

do not penetrate the pile to the depth necessary 'Referring to thedrawing, 10 designates any to secure proper adhesion of the fibers tothe adsuitable base on which 'are' arranged, at either hesive and thisalso results in the production of end, pairs of aligned bearings 11--11and 12-12 an inferior product. We have found that the and in these pairsof bearings are rotatably best results are obtained by the use of acom-"il mounted shafts 13 and 14, respectively. The 80v pound of aconsistency which will not strike shaft 13 extends outward beyond thebearings 11 through the body of the rug, the rug being subat one and tosuch extending end is secured a sequently subjected toa workingoperation. This pulley 15 over which runs a belt 16 leading to workingoperation incorporates the fibers of the any suitable source of power.On the shafts 13 pile of the rug within the adhesive preparation and 14are arranged conveyor rolls 17 and 18, re- 85 without causing the sameto show on the., top spectively, and over these rolls runs a conveyor ofthe nished rug. vbelt 19. This conveyor belt is preferably made In ourpresent' invention we have devised an of an endless fabric belt 20 onone face of which improved method of and device for working-a isarranged a plurality of parallelly arranged 40 pile rug with which hasbeen incorporated an slats 21 of any suitable material; suchas wood, 90

adhesive compound such as latex. In carrying and secured to andextending outwardly from out our invention, we preferably utilize ameans these slats 21 and at an angle thereto are teeth of mechanicallyfeeding the pile rug fibers at 22. 'I'he endless conveyor belt 19 isadapted to any desired speed and associate therewith a roll have its-upper reach Vmoved in the direction of which preferably rotates inadirection opposite the arrow shown in Fig. 1, andit will be noted 95 toor against the direction ofy travel of the rug that such upper reachlies in a substantially horibers, and which roll is provided'with awork- `zontal plane. ing element or a plurality of working elements,Arranged above the endless conveyor 19 is a such as a helically woundresilient member. This source of supply of pile material 23 such as achute roll with the working element or elements there- 24 whichterminates at a point above thev upper 100 reach of the endless conveyor19 and adjacent to the roll 17 on the shaft 13 and by reference to Fig.1, it will be noted that such pile material 23 is fed downwardly throughthe chute 24 and thence on to the top reach of the endless conveyor 19,the teeth 22 acting to forcibly feed such pile material 23 onward in thedirection of the arrow shown in Fig. 1. The endless conveyor belt 19 isof any suitable length and width and on each side thereof is arranged aguard, or wall 25, preferably made.

of flexible material, so as to insure easy passage over the rolls 17 and18. The height of the wall 25 is preferably slightly less than theheight of the pile material 23.

. Arranged above the endless conveyor 19 and adjacent to the deliveryend of the chute 24 is an adhesive holding ltank 26. This tank isconnected by a pipe 27 to any suitable source of supply of air underpressure. On the lower end of the tank 27 is formed a delivery nozzle ororifice 28, which extends across the width of the endless conveyor 19.The tank 26 holds the adhesive compound 29 and by properly adjusting thesize of the orifice 28 and the pressure lead to the tank through thepipe 27, the rate of flow of the adhesive 'compound 29 may be regulatedso that the desired amount may be applied to the pile material 23 as itis continuously carried under the supply of adhesive preparation.

Secured to the base 10 on either side of the endless conveyor 19 andadjacent the tank 26 are bearing members 30, each provided with avertically arranged slot 31 in which is slidably mounted a bearing block32. In the bearing blocks 32 are aligned bearings in which are rotatablymounted a shaft 33, one end of which extends outwardly beyond thebearing block 32 and has secured thereto a. pulley 34 over which runs abelt 35 leading from any suitable source of power. Secured to the shaft33 and extending over the entire width of the endless conveyor belt 19is a roller 36, having mounted thereon helically wound working elements37 of any suitable form and size. The shaft 33 is\adapted to rotate inthe direction of the arrow shown in Fig. 3, which,` it will bev noted,is opposite to the direction of travel of the pile material 23 on theendless conveyor belt 19. Associated with the bearing blocks 32 in thebearing members 30 are means 97 utilized for adjusting the pressure onthe pile material exerted by the roller 36. As the pile material 23moves past the orifice 28 of the adhesive holding tank 2'6, it will moveunder the roller 36 when the working elements 37 will work the uppersurface of the pile material and the adhesive compound l29 depositedthereon, and such action will force the adhesive compound 29 from itsposition on top of the pile material 23 to a position just within thesurface of such pile material, as clearly shown in Fig. 3. Underneaththe upper reach of the conveyor 19 may be provided a platen 9, suitablysupported as by brackets fixed to base 10. n

Mounted on the base 10 adjacent to the roller 36 and on each side of theendless conveyor 19 are pairs of standards 38 on which are adjustablymountedmembers 39, and these members support a frame 40 extending acrossthe width of the endless conveyor 19. Secured to the frame 40 is asmoothing blade 41 and which acts to smooth the upper surface of theadhesive covered pile material 23, in much the same manner as with asmoothing knife. This smoothing action tends not only to smooth theadhesive 29. but also tends to remove surplus adhesive from the pile.

Secured to the base 10 and esending upwardly therefrom on either side ofthe endless conveyor 19 are bearing standards 42. Secured to the top ofsuch bearing standards are bearing members 43 in which is rotatablymounted a shaft 44, and.. on such shaft may be placed a roll of backingmaterial 45, such, for example, as a roll of jute backing. Secured tothe base 10 on either side of the endless conveyor 19 and extending up'-wardly from the base are pairs of standards 46 and adjustably mounted onsuch standards are bearing members 47, in which is rotatably mounted aroll 48. Secured to and extending upwardly from the base 10 on eitherside of the endless conveyor 19 and adjacent the smoothing blade 41 arepairs of standards 49, and on each of these standards is adjustablymounted a bearing mem- 'ber 50. Rotatably mounted in the bearings 50 isa shaft 51 that has secured thereto a roll 52. The jute backing 45passes from the roll, above referred to, and passes under the roll 47,over and under the roll 52 and is-forced into engagement with thetop-surface of the pile material 23. To insure that the jute backing 45is guided properly over the roll 52 and onto the pile material 23, wehave provided on the base 10 on either side of the endless conveyor 19and adjacent to the roll 52, pairs of standards 53 and on thesestandards are adjustably mounted holding devices 54 connected by a shaft55. These holding devices 54 have secured thereto side guard plates 56which l105 engage with the edges of the jute backing 45 and insure theproper delivery thereof from the roll 47 to the roll 52. Between thepair of standards 46 and 53 and on the base 10are arranged pairs ofstandards 57 and on these pairs of standards 110 are adjustably mountedbearing members 58.

Adjustably mounted in the bearing members 58 isa shaft 59 on which ismounted a bar-60 having secured to its under face a cement-applyingblade 6l. Also adjustably mounted on the pairs 115 of standards 57 aremembers 62 connected by aishaft 63 and on which shaft is a bar 64. 0n

the pairs of standards 46 are adjustably mounted members 69 on which arearranged a shaft 66 carrying a bar 67. The b ars 64 and 67 act as sup-120 ports for a table 68 that supports the jute backing 45 in itspassage from the roll 57 to theroll 52 and also the table 68 cooperateswith the blade 6l to form a receptacle for a body of cement'70 or forany other suitable adhesive. The jute backing 45 passes from therollunder the roll 47 over the table 68 and under the blade 61, iscoated with adhesive 70 and so is in prime condition to adhere to theupper surface of the adhesively 1 covered upper surface of the pilematerial 23.

After passing under the roll 52 so as to have the jute backing 45attached thereto, the pile material 23 is carried by the endlessconveyor beit 19 into a vulcanizing oven 71.` This vulcanizing oven isof any suitable length to have the vulcanized operation carried out onthe unvulcanized adhesive material 29 and in order to supply heat' tosuch oven, we mount on the base 10 an air heating device 72 on top ofwhich is mounted a' blower 73, .driven from any suitable source of 14g`power, as by electric current, and the heated air is blown through thepipe 74 and into the oven 71, passing through the length of the oven andis 4exhausted out of the orifices 75. Within the oven 71.are arrangedabove the endless conveyor belt 19, a plurality of parallellyarrangedironing rolls 76, and by means of which the jute backing 45 isrolled into firm engagement with the pile material 23. After passingthrough the vulcanizing oven 71, the treated pile fabric is rolled ontoan arbor '77, suitably supported by any convenient means.

For economy in manufacture, the pile material 23 is preferably madetwice the thickness `of" the ordinary rug, and, therefore, 'such pilematerial 23 is preferably run twice through the apparatus, as abovedescribed, or twice through equivalent apparatus in order to have .theadhesive compound 29 applied to and worked into both surfaces thereof,and also to have a backing 45 attached to both sides. lThe resultantproduct is shown in cross-section in Fig. 4, and such product may beconveniently and by any of the usual and well-known means split into twoparts along approximately the line 78. Each half of the pile fabric, asshown in Fig. 4, may thus constitute a rug or other oor covering.4 Ifdesired, during the operations above described, that of applying thejute backing may be omitted, and after splitting, as above immediatelydescribed, the two halves'of the structure may be placed back-toback andbe adhesively united together, the result being a double-faced pilefabric.

, While we have necessarily shown and described the preferred embodimentof our inventon somewhat in detail, it is to be understood that Wearenot to be limited to the exact structure shown and may vary the size,shape and arrangement of parts comprising the device within relativelywide limits without departing from the spirit and scope of theinvention.

Having thus described our invention, what we claim and desire to protectby Letters Patent is:

1. In Yan improved device for applying an adhesive preparation to pilematerials, the combination of a source of supply of parallelly arrangedfibers, a source of supply of adhesive preparation in paste form, meansforfeeding the parallelly arranged fibers continuously in the form of afiat layer into association with the source of supply of adhesivepreparation to thereby have a layer of the adhesive preparationdeposited on.. the layer of parallelly arranged fibers, and means forbending and flexing the fibers to work the adhesive preparation into thesurface of the layer of fibers and around the fibers.

2. In an improved device for applying an adhesive paste. to pilematerials, the combination of a source of parallelly arranged fibers inthe form of a fiat layer, means for continuously advancing such layer,means for depositing an adhesive paste on one face of said layer, andmeans for bending and fiexing the fibers to work the adhesive paste intothe surface of the layer and around the fibers thereof.

3. In an improved device for applying an adhesive paste to pilematerials, the combination of a source of parallelly arranged fibers inthe form of a flat layer, means for continuously advancing such layer,means for depositing an adhesive paste on one face of said layer, meansfor bending and flexing the fibers to Work the adhesive paste into thesurface of the layer and around the fibers thereof, and means forattaching a backing to the face of the layer.

4. In an improved device for applying an adhesive paste to pilematerials, the'combination of a source of parallelly arranged fibers inthe form of a flat layer, means for continuously advancing such layer,means Ifor depositing an adhesive paste on one face of said layer, meansfor bending and flexing the fibers to work the adhesive paste into thesurface of the layer and around the bers thereof, means, for attaching abacking to the face ofthe layer, and

means for forcing ysaid backing into intimate engagement with theadhesive paste.

5. In an improved device for applying an adhesive paste to pilematerials, the combination of a source of parallelly arranged fibers inthe form of a flat layer, means for continuously advancing such layer,means for depositing an adhesive paste on one face of said layer, meansfor bending and flexing the fibers to Work the adhesive paste into thesurface of the layer and around the fibers thereof, means for attachinga backing to the face of the layer, means for forcing said backing intointimate engagement with the adhesive paste, and means for vulcanizingsaid adhesive paste. l

6. In an improved device for applying an adhesive paste to pilematerials, the combination of a source of parallelly arranged fibers, inthe form of a fiat layer, means for advancing said layer continuously,means for depositing an adhesive paste on one face of said layer, andmeans for bending and flexing the fibers to work the adhesive paste intothe surface of the layer and around the fibersthereof.

7. In an improved device for applying an ad-IOU hesive paste to pilematerials, the combination of a source of parallelly arranged fibers, inthe form of a fiat layer, means for depositing an adhesive paste on oneface of said layer, means for bending and fiexing the fibers to work theadhesivec4 paste into the surface' of the layer and around the fibersthereof, and means for imparting a continuous relative movement betweenthe layer of fibers and the bending and flexing means. A

8. In an improved,a device for applying adhesive prepartions to pilematerials, the combination of a continuously advancing conveyor, aroller located above the conveyor and rotatable in a direction oppositeto the direction of travel 115 of the conveyor and a platen supportingthe upper surface of the conveyor at a point opposite the roller.

9. In an improved device for applying adhesive vpreparations to pilematerials, the combination of a feeding conveyor for feeding suchmaterial,

a platen supporting the upper reach thereof in a horizontal plane, aroller located above the conveyor, a helically arranged working elementon the roller and associated with the conveyor, and-means for rotatingthe roller to have the helically arranged element exert a working actionon the pile material.

10. In an improvedv device for applying adhesive preparations to pilematerials, the combination of means for continuously advancing pilematerial, an adhesive pastefeeding means for spreading paste on thesurface-of a layer of the pile material, and a working devicecooperating with the said rst mentioned means, and means for impartingmotion thereto in a direction opposite to the direction of travel of thepile fabric.

l1. In an improved device for applying adhesive preparations to pilematerials, the comso R working element on the roller and associatedwiththe conveyor and means for rotating the roller to cause the workingelement to exert a -working action longitudinally and transversely ofthe pile material. Y

.' RAYMOND J. OBRIEN.

EARDLEY HAZELL.

